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Weather Forecast Office Philadelphia/Mount Holly, NJ Middle Atlantic River Forecast Center

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Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Delaware River at Trenton Forecast crest: 9.8 ft at 1:00pm Feb 10 Observed crest: 10.02 ft at 8:00am Feb 07 Observed: 9.92 ft at 9:45pm Feb 6 Observed: 9.92 ft at 10:00pm Feb 6 Observed: 9.92 ft at 10:15pm Feb 6 Observed: 9.92 ft at 10:30pm Feb 6 Observed: 9.92 ft at 10:45pm Feb 6 Observed: 9.92 ft at 11:00pm Feb 6 Observed: 9.92 ft at 11:15pm Feb 6 Observed: 9.92 ft at 11:30pm Feb 6 Observed: 9.92 ft at 11:45pm Feb 6 Observed: 9.92 ft at 12:00am Feb 7 Observed: 9.92 ft at 12:15am Feb 7 Observed: 9.92 ft at 12:30am Feb 7 Observed: 9.92 ft at 12:45am Feb 7 Observed: 9.92 ft at 1:00am Feb 7 Observed: 9.92 ft at 1:15am Feb 7 Observed: 9.93 ft at 1:30am Feb 7 Observed: 9.93 ft at 1:45am Feb 7 Observed: 9.94 ft at 2:00am Feb 7 Observed: 9.94 ft at 2:15am Feb 7 Observed: 9.94 ft at 2:30am Feb 7 Observed: 9.95 ft at 2:45am Feb 7 Observed: 9.96 ft at 3:00am Feb 7 Observed: 9.96 ft at 3:15am Feb 7 Observed: 9.96 ft at 3:30am Feb 7 Observed: 9.96 ft at 3:45am Feb 7 Observed: 9.96 ft at 4:00am Feb 7 Observed: 9.97 ft at 4:15am Feb 7 Observed: 9.98 ft at 4:30am Feb 7 Observed: 9.98 ft at 4:45am Feb 7 Observed: 9.98 ft at 5:00am Feb 7 Observed: 9.98 ft at 5:15am Feb 7 Observed: 9.99 ft at 5:30am Feb 7 Observed: 9.99 ft at 5:45am Feb 7 Observed: 10 ft at 6:00am Feb 7 Observed: 10 ft at 6:15am Feb 7 Observed: 10 ft at 6:30am Feb 7 Observed: 10 ft at 6:45am Feb 7 Observed: 10 ft at 7:00am Feb 7 Observed: 10.01 ft at 7:15am Feb 7 Observed: 10.01 ft at 7:30am Feb 7 Observed: 10.01 ft at 7:45am Feb 7 Observed: 10.02 ft at 8:00am Feb 7 Observed: 10.02 ft at 8:15am Feb 7 Observed: 10.02 ft at 8:30am Feb 7 Observed: 10.02 ft at 8:45am Feb 7 Observed: 10.02 ft at 9:00am Feb 7 Observed: 10.02 ft at 9:15am Feb 7 Observed: 10 ft at 9:30am Feb 7 Observed: 9.99 ft at 9:45am Feb 7 Observed: 9.97 ft at 10:00am Feb 7 Observed: 9.96 ft at 10:15am Feb 7 Observed: 9.94 ft at 10:30am Feb 7 Observed: 9.92 ft at 10:45am Feb 7 Observed: 9.92 ft at 11:00am Feb 7 Observed: 9.91 ft at 11:15am Feb 7 Observed: 9.9 ft at 11:30am Feb 7 Observed: 9.9 ft at 11:45am Feb 7 Observed: 9.89 ft at 12:00pm Feb 7 Observed: 9.88 ft at 12:15pm Feb 7 Observed: 9.88 ft at 12:30pm Feb 7 Observed: 9.88 ft at 12:45pm Feb 7 Observed: 9.87 ft at 1:00pm Feb 7 Observed: 9.86 ft at 1:15pm Feb 7 Observed: 9.86 ft at 1:16pm Feb 7 Observed: 9.86 ft at 1:30pm Feb 7 Observed: 9.86 ft at 1:31pm Feb 7 Observed: 9.86 ft at 1:45pm Feb 7 Observed: 9.84 ft at 2:00pm Feb 7 Observed: 9.84 ft at 2:15pm Feb 7 Observed: 9.83 ft at 2:30pm Feb 7 Observed: 9.83 ft at 2:45pm Feb 7 Observed: 9.82 ft at 3:00pm Feb 7 Observed: 9.82 ft at 3:15pm Feb 7 Observed: 9.8 ft at 3:30pm Feb 7 Observed: 9.8 ft at 3:45pm Feb 7 Observed: 9.8 ft at 4:00pm Feb 7 Observed: 9.79 ft at 4:15pm Feb 7 Observed: 9.78 ft at 4:30pm Feb 7 Observed: 9.78 ft at 4:45pm Feb 7 Observed: 9.77 ft at 5:00pm Feb 7 Observed: 9.76 ft at 5:15pm Feb 7 Observed: 9.75 ft at 5:30pm Feb 7 Observed: 9.74 ft at 5:45pm Feb 7 Observed: 9.74 ft at 6:00pm Feb 7 Observed: 9.72 ft at 6:15pm Feb 7 Observed: 9.72 ft at 6:30pm Feb 7 Observed: 9.7 ft at 6:45pm Feb 7 Observed: 9.69 ft at 7:00pm Feb 7 Observed: 9.68 ft at 7:15pm Feb 7 Observed: 9.67 ft at 7:30pm Feb 7 Observed: 9.66 ft at 7:45pm Feb 7 Observed: 9.66 ft at 8:00pm Feb 7 Observed: 9.64 ft at 8:15pm Feb 7 Observed: 9.64 ft at 8:30pm Feb 7 Observed: 9.63 ft at 8:45pm Feb 7 Observed: 9.62 ft at 9:00pm Feb 7 Observed: 9.61 ft at 9:15pm Feb 7 Observed: 9.6 ft at 9:30pm Feb 7 Observed: 9.59 ft at 9:45pm Feb 7 Observed: 9.58 ft at 10:00pm Feb 7 Observed: 9.58 ft at 10:15pm Feb 7 Observed: 9.56 ft at 10:30pm Feb 7 Observed: 9.56 ft at 10:45pm Feb 7 Observed: 9.56 ft at 11:00pm Feb 7 Observed: 9.55 ft at 11:15pm Feb 7 Observed: 9.54 ft at 11:30pm Feb 7 Observed: 9.54 ft at 11:45pm Feb 7 Observed: 9.53 ft at 12:00am Feb 8 Observed: 9.52 ft at 12:15am Feb 8 Observed: 9.52 ft at 12:30am Feb 8 Observed: 9.52 ft at 12:45am Feb 8 Observed: 9.52 ft at 1:00am Feb 8 Observed: 9.51 ft at 1:15am Feb 8 Observed: 9.51 ft at 1:30am Feb 8 Observed: 9.5 ft at 1:45am Feb 8 Observed: 9.5 ft at 2:00am Feb 8 Observed: 9.5 ft at 2:15am Feb 8 Observed: 9.5 ft at 2:30am Feb 8 Observed: 9.5 ft at 2:45am Feb 8 Observed: 9.5 ft at 3:00am Feb 8 Observed: 9.5 ft at 3:15am Feb 8 Observed: 9.5 ft at 3:30am Feb 8 Observed: 9.51 ft at 3:45am Feb 8 Observed: 9.52 ft at 4:00am Feb 8 Observed: 9.52 ft at 4:15am Feb 8 Observed: 9.54 ft at 4:30am Feb 8 Observed: 9.54 ft at 4:45am Feb 8 Observed: 9.56 ft at 5:00am Feb 8 Observed: 9.57 ft at 5:15am Feb 8 Observed: 9.59 ft at 5:30am Feb 8 Observed: 9.6 ft at 5:45am Feb 8 Observed: 9.63 ft at 6:00am Feb 8 Observed: 9.64 ft at 6:15am Feb 8 Observed: 9.66 ft at 6:30am Feb 8 Observed: 9.68 ft at 6:45am Feb 8 Observed: 9.7 ft at 7:00am Feb 8 Observed: 9.72 ft at 7:15am Feb 8 Observed: 9.74 ft at 7:30am Feb 8 Observed: 9.75 ft at 7:45am Feb 8 Observed: 9.76 ft at 8:00am Feb 8 Observed: 9.78 ft at 8:15am Feb 8 Observed: 9.8 ft at 8:30am Feb 8 Observed: 9.81 ft at 8:45am Feb 8 Observed: 9.82 ft at 9:00am Feb 8 Observed: 9.83 ft at 9:15am Feb 8 Observed: 9.83 ft at 9:30am Feb 8 Observed: 9.82 ft at 9:45am Feb 8 Observed: 9.82 ft at 10:00am Feb 8 Observed: 9.82 ft at 10:15am Feb 8 Observed: 9.82 ft at 10:30am Feb 8 Observed: 9.82 ft at 10:45am Feb 8 Observed: 9.82 ft at 11:00am Feb 8 Observed: 9.82 ft at 11:15am Feb 8 Observed: 9.82 ft at 11:30am Feb 8 Observed: 9.82 ft at 11:45am Feb 8 Observed: 9.82 ft at 12:00pm Feb 8 Observed: 9.82 ft at 12:15pm Feb 8 Observed: 9.82 ft at 12:30pm Feb 8 Observed: 9.82 ft at 12:45pm Feb 8 Observed: 9.81 ft at 1:00pm Feb 8 Observed: 9.8 ft at 1:15pm Feb 8 Observed: 9.8 ft at 1:16pm Feb 8 Observed: 9.8 ft at 1:30pm Feb 8 Observed: 9.8 ft at 1:31pm Feb 8 Observed: 9.8 ft at 1:45pm Feb 8 Observed: 9.79 ft at 2:00pm Feb 8 Observed: 9.79 ft at 2:15pm Feb 8 Observed: 9.79 ft at 2:30pm Feb 8 Observed: 9.78 ft at 2:45pm Feb 8 Observed: 9.76 ft at 3:00pm Feb 8 Observed: 9.76 ft at 3:15pm Feb 8 Observed: 9.76 ft at 3:30pm Feb 8 Observed: 9.75 ft at 3:45pm Feb 8 Observed: 9.75 ft at 4:00pm Feb 8 Observed: 9.74 ft at 4:15pm Feb 8 Observed: 9.73 ft at 4:30pm Feb 8 Observed: 9.72 ft at 4:45pm Feb 8 Observed: 9.72 ft at 5:00pm Feb 8 Observed: 9.71 ft at 5:15pm Feb 8 Observed: 9.7 ft at 5:30pm Feb 8 Observed: 9.69 ft at 5:45pm Feb 8 Observed: 9.68 ft at 6:00pm Feb 8 Observed: 9.67 ft at 6:15pm Feb 8 Observed: 9.66 ft at 6:30pm Feb 8 Observed: 9.66 ft at 6:45pm Feb 8 Observed: 9.64 ft at 7:00pm Feb 8 Observed: 9.64 ft at 7:15pm Feb 8 Observed: 9.63 ft at 7:30pm Feb 8 Observed: 9.62 ft at 7:45pm Feb 8 Observed: 9.6 ft at 8:00pm Feb 8 Observed: 9.6 ft at 8:15pm Feb 8 Observed: 9.59 ft at 8:30pm Feb 8 Observed: 9.58 ft at 8:45pm Feb 8 Observed: 9.56 ft at 9:00pm Feb 8 Observed: 9.56 ft at 9:15pm Feb 8 Observed: 9.55 ft at 9:30pm Feb 8 Observed: 9.54 ft at 9:45pm Feb 8 Observed: 9.54 ft at 10:00pm Feb 8 Observed: 9.52 ft at 10:15pm Feb 8 Observed: 9.52 ft at 10:30pm Feb 8 Observed: 9.51 ft at 10:45pm Feb 8 Observed: 9.5 ft at 11:00pm Feb 8 Observed: 9.5 ft at 11:15pm Feb 8 Observed: 9.49 ft at 11:30pm Feb 8 Observed: 9.48 ft at 11:45pm Feb 8 Observed: 9.48 ft at 12:00am Feb 9 Observed: 9.48 ft at 12:15am Feb 9 Observed: 9.47 ft at 12:30am Feb 9 Observed: 9.46 ft at 12:45am Feb 9 Observed: 9.46 ft at 1:00am Feb 9 Observed: 9.46 ft at 1:15am Feb 9 Observed: 9.45 ft at 1:30am Feb 9 Observed: 9.44 ft at 1:45am Feb 9 Observed: 9.44 ft at 2:00am Feb 9 Observed: 9.44 ft at 2:15am Feb 9 Observed: 9.44 ft at 2:30am Feb 9 Observed: 9.43 ft at 2:45am Feb 9 Observed: 9.43 ft at 3:00am Feb 9 Observed: 9.43 ft at 3:15am Feb 9 Observed: 9.43 ft at 3:30am Feb 9 Observed: 9.43 ft at 3:45am Feb 9 Observed: 9.43 ft at 4:00am Feb 9 Observed: 9.43 ft at 4:15am Feb 9 Observed: 9.43 ft at 4:30am Feb 9 Observed: 9.43 ft at 4:45am Feb 9 Observed: 9.44 ft at 5:00am Feb 9 Observed: 9.44 ft at 5:15am Feb 9 Observed: 9.44 ft at 5:30am Feb 9 Observed: 9.46 ft at 5:45am Feb 9 Observed: 9.46 ft at 6:00am Feb 9 Observed: 9.47 ft at 6:15am Feb 9 Observed: 9.48 ft at 6:30am Feb 9 Observed: 9.49 ft at 6:45am Feb 9 Observed: 9.5 ft at 7:00am Feb 9 Observed: 9.51 ft at 7:15am Feb 9 Observed: 9.52 ft at 7:30am Feb 9 Observed: 9.54 ft at 7:45am Feb 9 Observed: 9.55 ft at 8:00am Feb 9 Observed: 9.56 ft at 8:15am Feb 9 Observed: 9.58 ft at 8:30am Feb 9 Observed: 9.59 ft at 8:45am Feb 9 Observed: 9.6 ft at 9:00am Feb 9 Observed: 9.61 ft at 9:15am Feb 9 Observed: 9.62 ft at 9:30am Feb 9 Observed: 9.63 ft at 9:45am Feb 9 Observed: 9.64 ft at 10:00am Feb 9 Observed: 9.64 ft at 10:15am Feb 9 Observed: 9.65 ft at 10:30am Feb 9 Observed: 9.66 ft at 10:45am Feb 9 Observed: 9.66 ft at 11:00am Feb 9 Observed: 9.67 ft at 11:15am Feb 9 Observed: 9.68 ft at 11:30am Feb 9 Observed: 9.68 ft at 11:45am Feb 9 Observed: 9.68 ft at 12:00pm Feb 9 Observed: 9.69 ft at 12:15pm Feb 9 Observed: 9.69 ft at 12:30pm Feb 9 Observed: 9.7 ft at 12:45pm Feb 9 Observed: 9.7 ft at 1:00pm Feb 9 Observed: 9.7 ft at 1:15pm Feb 9 Observed: 9.7 ft at 1:16pm Feb 9 Observed: 9.7 ft at 1:30pm Feb 9 Observed: 9.7 ft at 1:31pm Feb 9 Observed: 9.7 ft at 1:45pm Feb 9 Observed: 9.7 ft at 2:00pm Feb 9 Observed: 9.7 ft at 2:15pm Feb 9 Observed: 9.7 ft at 2:30pm Feb 9 Observed: 9.71 ft at 2:45pm Feb 9 Observed: 9.71 ft at 3:00pm Feb 9 Observed: 9.71 ft at 3:15pm Feb 9 Observed: 9.7 ft at 3:30pm Feb 9 Observed: 9.71 ft at 3:45pm Feb 9 Observed: 9.71 ft at 4:00pm Feb 9 Observed: 9.71 ft at 4:15pm Feb 9 Observed: 9.7 ft at 4:30pm Feb 9 Observed: 9.7 ft at 4:45pm Feb 9 Observed: 9.7 ft at 5:00pm Feb 9 Observed: 9.7 ft at 5:15pm Feb 9 Observed: 9.7 ft at 5:30pm Feb 9 Observed: 9.7 ft at 5:45pm Feb 9 Observed: 9.69 ft at 6:00pm Feb 9 Observed: 9.68 ft at 6:15pm Feb 9 Observed: 9.68 ft at 6:30pm Feb 9 Observed: 9.68 ft at 6:45pm Feb 9 Observed: 9.68 ft at 7:00pm Feb 9 Observed: 9.67 ft at 7:15pm Feb 9 Observed: 9.67 ft at 7:30pm Feb 9 Observed: 9.66 ft at 7:45pm Feb 9 Observed: 9.66 ft at 8:00pm Feb 9 Observed: 9.66 ft at 8:15pm Feb 9 Observed: 9.65 ft at 8:30pm Feb 9 Observed: 9.65 ft at 8:45pm Feb 9 Observed: 9.64 ft at 9:00pm Feb 9 Observed: 9.64 ft at 9:15pm Feb 9 Forecast: 9.7 ft at 1:00pm Feb 9 Forecast: 9.7 ft at 7:00pm Feb 9 Forecast: 9.7 ft at 1:00am Feb 10 Forecast: 9.7 ft at 7:00am Feb 10 Forecast: 9.8 ft at 1:00pm Feb 10 Forecast: 9.8 ft at 7:00pm Feb 10 Forecast: 9.8 ft at 1:00am Feb 11 Forecast: 9.7 ft at 7:00am Feb 11 Forecast: 9.7 ft at 1:00pm Feb 11 Forecast: 9.7 ft at 7:00pm Feb 11 Forecast: 9.6 ft at 1:00am Feb 12 Forecast: 9.6 ft at 7:00am Feb 12 Graph Created (10:04pm Feb 9, 2010) Observed Forecast (issued 9:46am Feb 9) USGS--Water Resources of the United States TREN4 (plotting HGIRG) Gage 0 Datum: n/a Latest observed value: 9.64 ft at 9:15 PM EST 9-Feb-2010. Flood Stage is 20.0 ft. Stage (ft) Flow (kcfs)
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NOTE: Forecasts for the Delaware River at Trenton are issued routinely year-round.

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Upstream Gauge - at Washington Crossing Upstream Gauge Downstream Gauge Downstream Gauge - at Pier 12 Philadelphia

Flood Categories (in feet)
Major Flood Stage:25
Moderate Flood Stage:23
Flood Stage:20
Action Stage:15

Historical Crests
(1) 30.60 ft on 03/08/1904
(2) 28.60 ft on 08/20/1955
(3) 28.50 ft on 10/11/1903
(4) 25.33 ft on 04/04/2005
(5) 25.09 ft on 06/29/2006
Show More Historical Crests

Low Water Records
Currently none available.

Delaware River at Trenton location map

Flood Impacts & Photos Collapse
18.5 Water begins entering level 1 of the parking garage at state capitol building
17.0 Flooding begins upstream along PA Route 32 in Yardley
Photos
(1) Ice at the Trenton Gage

About This Location Collapse
Latitude: 40.221700° N, Longitude: 74.778300° W, Horizontal Datum: NAD83

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 20 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)		 Elevation
(gauge height = flood stage)		 Elevation information source
NAVD88 N/A N/A Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 0 ft 20 ft Older USGS topographic maps, NGVD29 benchmarks
MSL N/A N/A Older USGS topographic maps, MSL benchmarks
Other N/A N/A  

Other Data Sources:
U.S. Geological Survey (USGS) Data and Site Info for Trenton

Resources Collapse
Hydrologic Resources
 Additional Resources
   

Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.

NWS Information
National Weather Service
Philadelphia/Mount Holly Weather Forecast Office
732 Woodlane Road
Mount Holly, NJ 08060-9615
(609) 261-6600
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